Use a calculator to compute. Round the result to two decimal places.-131.89 - 41.94
A. -173.83
B. 173.83
C. 89.95
D. -89.95
Answer: A
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Subtract.5 - 16
A. -21 B. 21 C. 11 D. -11
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.logb 
A. logbx + logby2 + logbz7 B. logbx + 2logby + 7logbz C. logbx + 2logby - 7logbz D. logbx + logby2 - logbz7
Solve the problem.A survey of 2,504 credit card users indicated that 1,167 had bought books online, 1,226 had bought music online, 431 had bought pet supplies online, 128 had bought both books and music, 227 had bought both books and pet supplies, 198 had bought both music and pet supplies, and 99 had bought all three. How many credit card users did not buy any of the three? How many bought either books or pet supplies but not music?
A. 134; 1,016 B. 233; 1,016 C. 134; 1,115 D. 134; 1,144
Factor completely. If the polynomial cannot be factored, say it is prime.512x4 - x
A. x(8x + 1)(64x2 - 8x + 1) B. x(8x - 1)(64x2 + 1) C. x(512x - 1)(x2 + 8x + 1) D. x(8x - 1)(64x2 + 8x + 1)